CN115217340B - Anchor-bolt-free unbonded installation method suitable for outer thermal insulation layer of steel structure building - Google Patents
Anchor-bolt-free unbonded installation method suitable for outer thermal insulation layer of steel structure building Download PDFInfo
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- CN115217340B CN115217340B CN202210648291.XA CN202210648291A CN115217340B CN 115217340 B CN115217340 B CN 115217340B CN 202210648291 A CN202210648291 A CN 202210648291A CN 115217340 B CN115217340 B CN 115217340B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 141
- 239000010959 steel Substances 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000009434 installation Methods 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 title claims description 16
- 239000011490 mineral wool Substances 0.000 claims abstract description 97
- 239000000463 material Substances 0.000 claims abstract description 22
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims abstract description 4
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 19
- 239000000378 calcium silicate Substances 0.000 claims description 19
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 5
- 210000001015 abdomen Anatomy 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 210000003815 abdominal wall Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
Abstract
The application discloses an anchor-free non-binding installation method of an outer heat-insulating layer suitable for a steel structure building, and aims to solve the technical problem that a steel member part cannot anchor and bind a rock wool plate. The method comprises the following steps: (1) U-shaped connectors are arranged at corresponding positions on the steel structure beam column; (2) After the steel structure beam column is installed, coating a fireproof material layer on the surfaces of the steel structure beam column and the U-shaped connecting piece; (3) Cutting the rock wool board, and tightly installing the rock wool board between the corresponding U-shaped connecting pieces; (4) fixing a fireproof flame-retardant heat-insulating plate on the U-shaped connecting piece; and (5) performing construction of the plastering layer and the finishing layer. By adopting the anchor-free bonding-free installation method for the outer heat preservation layer suitable for the steel structure building, compared with the traditional rock wool board construction process, the problems of steel member adhesion and anchor-fixed rock wool board construction are solved, the labor cost and material loss can be reduced, the operation efficiency is greatly improved, and the method has higher reliability.
Description
Technical Field
The application relates to the technical field of construction of an outer heat-insulating layer of a building, in particular to an anchor-free non-binding installation method of an outer heat-insulating layer suitable for a steel structure building.
Background
In the construction of exterior walls of buildings, it is often necessary to install insulation layers on the outside of the exterior walls to provide insulation to the building. Rock wool boards are widely used in practical engineering as A-grade heat insulating materials with excellent performance. The existing rock wool board is a rock wool bare board with a single-layer structure. Before paving the rock wool boards, firstly coating cement mortar on the outer wall, then directly adhering the rock wool boards cut into proper sizes on a base wall body through an adhesive, and fixing with the aid of anchor bolts. The method is complex in operation, needs to be bonded through an adhesive and is fixed in an auxiliary mode by using the anchor bolts, and is poor in applicability. For example, for steel structure buildings, steel columns and steel beams have poor bonding performance due to material characteristics, and rock wool plates bonded on the steel columns and the steel beams are extremely easy to have phenomena of edge warping, falling and the like; on the other hand, because the steel column and the steel beam are main stress and supporting structures of the steel structure building, and according to the requirement of anchor bolt fixing, the number of the anchor bolts is generally 5-10 per square meter, a large number of holes are required to be drilled on the steel member, the steel member is greatly damaged, and the bearing capacity is influenced, so that a bolt auxiliary fixing method cannot be adopted on the steel member due to safety consideration. Therefore, the construction method of the rock wool board at the steel structure part needs to be solved urgently.
The inventor knows a layering type rock wool plate structure (CN 211312906U) which is convenient to install and fix, and discloses a layering type rock wool plate structure which is convenient to install and fix, wherein supporting channel steel is transversely arranged at the bottom right in front of a wall body, unidirectional channel steel is vertically arranged at two ends of the top surface of the supporting channel steel, the unidirectional channel steel is positioned at two sides of the front surface of the wall body and is tightly attached to the wall body, bidirectional channel steel is vertically arranged in the middle of the top surface of the supporting channel steel, and the bidirectional channel steel is positioned in the middle of the front surface of the wall body and is tightly attached to the wall body; the rock wool board is characterized in that a plurality of rows of plum blossom grooves are recessed in front of the rock wool board, T-shaped bolt grooves penetrating through the rock wool board are recessed in the bottoms of the plum blossom grooves, and expansion grooves are recessed in the front of the wall body at positions corresponding to the T-shaped bolt grooves. The end faces of the unidirectional channel steel and the bidirectional channel steel are sunken with T-shaped grooves, fixing plates corresponding to the T-shaped grooves are arranged on two end faces of the rock wool plate, the fixing plate clamp of one end face of the rock wool plate is arranged in the T-shaped groove of the unidirectional channel steel, and the fixing plate clamp of the other end face of the rock wool plate is arranged in the T-shaped groove of the bidirectional channel steel.
However, in the process of implementing the technical solution in the embodiment of the present application, the present inventors have found that at least the following technical problems exist in the above technology:
(1) The main purpose is in order to solve the technical problem of the connection between the rock wool boards, the rock wool boards are required to be fixed by bolts, and the problem of covering the external corners of the upright posts cannot be solved by the channel steel setting method.
(2) The rock wool board both ends face all is equipped with the fixed plate that corresponds with the T-shaped groove, needs handle rock wool board, and complex operation increases process and construction cost.
(3) The method is only suitable for the installation of rock wool boards on the surface of a wall body, and the installation of the surfaces of beams and columns of a steel structure cannot be realized.
The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art.
Disclosure of Invention
According to one aspect of the present disclosure, there is provided an anchor-free, non-binding installation method for an outer insulation layer of a steel structure building, comprising the steps of:
(1) Corresponding U-shaped connectors are arranged at corresponding positions on the steel structure beam column according to the design drawing;
(2) After the steel structure beam column is installed, coating a fireproof material layer on the surfaces of the steel structure beam column and the U-shaped connecting piece;
(3) Correspondingly cutting rock wool plates according to the space size and the arrangement diagram of the U-shaped connecting pieces, and tightly mounting the rock wool plates between the corresponding U-shaped connecting pieces;
(4) Fixing the fireproof flame-retardant heat-insulating plate on the U-shaped connecting piece;
(5) And (3) performing plastering and finishing layer construction on the steel structure part and the filled masonry wall part paved by the rock wool boards.
In some embodiments of the disclosure, the U-shaped connecting member comprises two parallel side walls and an abdominal wall perpendicular to the two side walls, the U-shaped connecting member is arranged perpendicular to the steel column, and the abdominal walls between two adjacent U-shaped connecting members in the steel column are symmetrically arranged in a fitting manner, and the U-shaped connecting member grooves at the end parts of the steel column are opposite to the adjacent connecting member grooves.
In some embodiments of the disclosure, in the step (1), the U-shaped connector is laid along a long side of the steel beam.
In some embodiments of the present disclosure, the U-shaped connector is connected to a flange steel plate of the H-section steel of the steel beam by angle steel.
In some embodiments of the present disclosure, in the step (2), the U-shaped connector groove width is a sum of a fire-proof material layer thickness and a rock wool plate thickness.
In some embodiments of the disclosure, in said step (3), the rock wool boards at the external corners on the steel uprights are interlocked with each other with each layer, the side face of one side rock wool board covering and not exceeding the end face of the other side rock wool board.
In some embodiments of the disclosure, in the step (4), the fireproof flame-retardant insulation board adopts a cement calcium silicate board, the cement calcium silicate board is fixed on the U-shaped connecting piece through a dovetail wire, the width of a splicing gap between the cement calcium silicate boards is controlled within 5mm, and the gap is filled with sealant.
In some embodiments of the present disclosure, in the step (5), the finishing layer and finishing layer are constructed with a smooth and high-level cement calcium silicate board outer surface and a filled masonry wall site rock wool board outer surface as substrates.
One or more technical solutions provided in the embodiments of the present application at least have any one of the following technical effects or advantages:
1. due to the adoption of the U-shaped connecting piece, the technical problem that the steel frame structure Liang Zhuchu in the prior art cannot fix the rock wool board by using the anchor bolts and the adhesive is effectively solved, and therefore the rapid and efficient construction without the anchor bolts and the adhesion is realized.
2. The method for fixing the cement calcium silicate plate on the U-shaped piece solves the problem that the steel structure beam column is not capable of being drilled and installed, further achieves the protection of the integrity of the steel structure, and can transfer the bearing force point of the cement calcium silicate plate onto the U-shaped connecting piece to prevent the steel structure from being damaged and influenced by long-term stress by the conventional punching method.
3. Due to the adoption of the U-shaped connecting pieces with simple and ingenious structure and the staggered interlocking arrangement mode, the problem that the rock wool boards are sealed at the external corners of the steel upright posts and the problem of the installation compactness of the rock wool boards are solved.
Drawings
Fig. 1 is a schematic structural diagram of a U-shaped connector according to an embodiment of the application.
FIG. 2 is a schematic layout of U-shaped connectors for steel columns according to an embodiment of the present application.
FIG. 3 is a schematic layout view of U-shaped connectors of a steel beam according to an embodiment of the present application.
Fig. 4 is a schematic view of an angle steel structure according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a steel column rock wool board staggered interlocking construction in an embodiment of the application.
Fig. 6 is a schematic cross-sectional view of a construction section of a steel column rock wool board in accordance with an embodiment of the application.
Fig. 7 is a schematic cross-sectional view of a construction portion of a steel beam rock wool board in accordance with an embodiment of the application.
FIG. 8 is a schematic view of anchor bolts for rock wool boards filling masonry wall portions in accordance with an embodiment of the present application.
In the above figures, 1 is a steel upright, 2 is a U-shaped connecting piece, 3 is a steel beam, 4 is angle steel, 5 is a fireproof coating, 6 is a rock wool board, 7 is a cement calcium silicate board, 8 is a plastering layer, 9 is a facing layer, 10 is a filled masonry wall, 11 is a leveling layer, 12 is a bonding layer, and 13 is an anchor bolt.
Detailed Description
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. The terms "connected," "coupled," and "connected," as used herein, unless specifically indicated otherwise, are intended to encompass both direct and indirect connections (couplings).
The components, structures, mechanisms, and the like, which are described in the following examples, are commercially available products unless otherwise specified.
In order to better understand the technical scheme of the present application, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment discloses an anchor bolt-free unbonded installation method of an outer heat preservation layer suitable for a steel structure building, which comprises the following steps:
(1) Corresponding U-shaped connectors are arranged at corresponding positions on the steel structure beam column according to the design drawing.
Firstly, combining an external wall heat insulation construction drawing and a steel structure construction drawing component BIM model, arranging U-shaped connectors at corresponding steel beam column positions in the model, completing the simulation arrangement of the rock wool boards, realizing the maximum utilization of materials through reasonable layout, and generating an arrangement diagram of the rock wool boards and the U-shaped connectors.
According to the BIM model, a U-shaped connector of corresponding specification is prepared, in this embodiment, referring to FIG. 1, the U-shaped connector is made of a 3mm thick steel plate and comprises two parallel side walls and an abdomen wall perpendicular to the two side walls. The right-angle U-shaped connecting piece can be better suitable for installation of the rock wool board, the contact area between the U-shaped connecting piece and the rock wool board is guaranteed to be increased to the greatest extent, and then the effects of stable clamping and reasonable average stress are achieved. And because of the convenience and material saving of the design, the waste materials of the steel structure processing factory can be processed after being selected, and the resource saving and the cost reduction can be realized to the greatest extent.
In the example, the steel upright post is a square box-shaped post with the cross section 300mm wide, so the length of the U-shaped connecting piece is 300mm; considering the thickness D1 of the rock wool plate and the thickness D2 of the fireproof material coated on the surface of the steel member, designing the two parallel side walls of the U-shaped connecting piece, namely the groove width as D1+D2, wherein the groove width is 125mm in the embodiment; on the other hand, because both side walls are mainly used for realizing holding and fixing the rock wool board, and need be used for the installation of cement calcium silicate board in the subsequent process to be fixed, so these two walls need certain width, in this case, design U type groove both arms width, namely the groove depth be 100mm, and this width/degree of depth can realize the maximum saving to the material when fine completion holds and fixes the effect, and then practice thrift engineering cost.
After the preparation of the U-shaped connecting piece is completed, the U-shaped connecting piece is required to be welded at the corresponding position on the steel structure beam column according to the layout of the U-shaped connecting piece. Referring to fig. 2, the length directions of the two side walls of the U-shaped connecting piece are mutually perpendicular to the height direction of the steel upright, and as the length of the side wall of the U-shaped connecting piece is consistent with the width of the steel upright, after one side wall of the U-shaped connecting piece is attached to the surface of the steel upright and welded, the projection of the U-shaped connecting piece on the surface falls on the steel upright completely, and the two U-shaped end faces of the U-shaped connecting piece are kept coplanar with the side face of the steel upright, so that the U-shaped connecting piece is arranged perpendicular to the steel upright.
The U-shaped connectors at the two ends of the steel upright post are arranged oppositely, namely the grooves are opposite. The web walls of the two U-shaped connecting pieces are respectively kept on the same plane with the two end surfaces of the steel upright post so as to realize complete coverage of the whole upright post. The U-shaped connecting pieces in the middle of the steel upright post are symmetrically arranged in pairs in a fitting way, and therefore the rock wool board at the position can be fixed by the U-shaped connecting pieces with the upper grooves and the lower grooves opposite to each other. The distance between the U-shaped connecting pieces on the steel upright post is not more than 600mm, and the rock wool board is prevented from generating gaps between the rock wool board and the steel upright post due to overlong distance, material properties and lack of necessary support, so that the installation quality of the rock wool board is further affected.
U-shaped connecting pieces on the steel beam are arranged along the length direction of the steel beam. Referring to fig. 3, in this embodiment, the girder steel is the i-beam, for material saving and quickening the efficiency of construction, and the U type connecting piece on this girder steel is laid along girder steel length, has reduced along the problem that needs cutting rock wool board many times that width laid and bring, can also guarantee the integrality of rock wool board on the roof beam, better realization heat preservation effect.
The U-shaped connecting piece on the steel beam is connected with the steel beam through angle steel. Because the upper side and the lower side of the H-shaped steel beam are provided with the protruding flanges, the contact area between the U-shaped connecting piece and the flanges is limited, the maximum cross section of the flanges under the projection of the U-shaped connecting piece is the thickness of the flanges, and the stable support of the U-shaped connecting piece is difficult to realize. So angle steel is adopted to realize stable connection. Referring to fig. 4, the length of the angle steel is 300mm consistent with the length of the U-shaped connecting piece, one surface of the angle steel is welded with the side wall of the U-shaped beam, the other surface of the angle steel is welded with the inner surface of the flange of the H-shaped steel, the U-shaped connecting pieces on the two flanges of the H-shaped steel are symmetrically arranged, and the grooves are opposite. On the other hand, considering the material characteristics of the rock wool board and the gaps between the rock wool board and the H-shaped steel beam, the distance between each U-shaped connecting piece is not more than 600mm, and the rock wool board and the steel beam are guaranteed to be attached to each other to the greatest extent.
(2) After the steel structure beam column is installed, a fireproof material layer is coated on the surfaces of the steel structure beam column and the U-shaped connecting piece.
After the steel structure beam column is installed, a fireproof material layer is coated on the surfaces of the steel structure beam column and the U-shaped connecting piece. And the thickness and the flatness of the fireproof paint coating at the U-shaped connecting piece are strictly controlled, and the guiding ruler and the feeler gauge are used for checking, so that the problem that the rock wool board cannot be put into or forced into the surface of the rock wool board to cause damage due to overlarge thickness caused by later installation is avoided, and the problem that the rock wool board is loosened between the U-shaped connecting pieces due to overlarge thickness is avoided.
(3) And correspondingly cutting the rock wool plates according to the space size and the arrangement diagram of the U-shaped connecting pieces, and tightly installing the rock wool plates between the corresponding U-shaped connecting pieces.
After the steel upright posts and the steel beams are integrated and installed according to the U-shaped connecting piece arrangement diagram, the rock wool boards are correspondingly cut according to the space size and the arrangement diagram of the U-shaped connecting pieces. In the embodiment, the rock wool board with the combustion performance of A1 level, the capacity of more than 140 kg/m and the length-width-thickness dimensional stability of less than or equal to 1% is adopted, wherein the rock wool board on one side of the steel upright post needs to exceed the length of the U-shaped connecting piece and extends to the outer surface of the rock wool board perpendicular to the rock wool board, namely the end surface of the side rock wool board and the outer surface of the rock wool board on the other side are positioned on the same plane so as to realize the sealing of the external corners of the steel upright post. And after the rock wool plate is cut, the rock wool plate is arranged between the corresponding U-shaped connecting pieces, so that the U-shaped connecting piece grooves can stably hold the rock wool plate. The rock wool boards positioned on the steel upright posts adopt a staggered interlocking construction mode, so that the rock wool boards are more compact in sealing the external corners of the steel upright posts. Referring to fig. 5, one side of the rock wool board of one layer is close to the external corner edge line of the steel upright, the extended part covers the end of the rock wool board of the other side and does not exceed the external side, the next layer changes the extended side by the same method, and the layers are alternately reciprocated in such a way that the layers are mutually staggered to form an interlocking structure.
(4) And fixing the fireproof flame-retardant heat-insulating plate on the U-shaped connecting piece.
In the embodiment, a cement calcium silicate board with the combustion performance of A-level nonflammable material and the flexural strength of more than or equal to 12MPa is selected as a fireproof flame-retardant heat-insulating board to seal the rock wool board. Because the steel structure beam column can not adopt the method for fixing the drilling tapping bolt, the influence on the bearing and the safety of the steel structure is avoided, the method for fixing the cement calcium silicate plate on the U-shaped connecting piece by adopting the dovetail wire is adopted, the cement calcium silicate plate is fixed on each U-shaped connecting piece by adopting the dovetail wire, and the fixing firmness of the cement calcium silicate plate is ensured to the greatest extent. On one hand, the disadvantages brought by directly fixing the U-shaped connecting piece on the steel structure beam column are avoided, and on the other hand, the U-shaped connecting piece is used for bearing the force applied by the cement calcium silicate board, so that the damage to the rock wool board is prevented.
(5) And (3) performing plastering and finishing layer construction on the steel structure part and the filled masonry wall part paved by the rock wool boards.
Referring to fig. 6-7, after the construction of the steel structure rock wool boards is completed, the construction of the rock wool boards of the filling masonry wall between the steel structures is carried out, according to the traditional construction method, the rock wool boards are bonded to the surface of the filling masonry wall which is subjected to leveling construction by adopting an adhesive with tensile bonding strength of more than 0.6MPa, the outer surface of the rock wool boards and the outer surface of the cement calcium silicate board are ensured to be in the same plane, two layers of glass fiber webs are uniformly distributed on the steel structure part and the filling masonry wall part, wherein glass fiber web joints are avoided being arranged at joints of the filling masonry wall and the cement calcium silicate board, and shrinkage cracks caused by different material joints and different shrinkage rates are prevented. Referring to fig. 8, two anchors are used to fix the central position of each insulation board filling the masonry wall, anchors are also used to fix four corners of the block rock wool board, plastering construction is performed after the fixing is completed, the plastering thickness is 5mm-7mm, and the finishing layer is constructed after acceptance inspection is qualified.
By adopting the non-binding fixing method of the anchor bolt for the steel structure rock wool board external heat insulation, compared with the traditional rock wool board construction process, the problems of steel member pasting and anchor bolt fixing rock wool board construction are solved, the labor cost and material loss can be reduced, the operation efficiency is greatly improved, the U-shaped connecting piece is welded with the steel structure, the stability of rock wool board fixing is ensured, and the stability is higher. For example, in the construction process of the embodiment, the material cost of the U-shaped connecting piece is 9 yuan/m 2 U-shaped connecting piece welding cost is 6 yuan/m 2 Cost for placing rock wool boards by U-shaped connecting piece is 5 yuan/m 2 Compared with the anchor bolt and the bonding mortar material of the rock wool board constructed by the traditional pasting method, the cost of the anchor bolt and the bonding mortar material is 10 yuan/m 2 Adhesive paving and anchor bolt fixing labor cost 40 yuan/m 2 The method saves 30 yuan/m 2 The construction cost is greatly reduced, and a better fixing effect can be achieved.
While certain preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. An anchor bolt-free unbonded installation method for an outer heat preservation layer of a steel structure building is characterized by comprising the following steps of:
(1) Corresponding U-shaped connectors are arranged at corresponding positions on the steel structure beam column according to the design drawing;
(2) After the steel structure beam column is installed, coating a fireproof material layer on the surfaces of the steel structure beam column and the U-shaped connecting piece;
(3) Correspondingly cutting rock wool plates according to the space size and the arrangement diagram of the U-shaped connecting pieces, and tightly mounting the rock wool plates between the corresponding U-shaped connecting pieces;
(4) Fixing the fireproof flame-retardant heat-insulating plate on the U-shaped connecting piece;
(5) And (3) constructing a plastering layer and a finishing layer on the steel structure part and the rock wool board laid filled masonry wall part by taking the outer surface of the cement calcium silicate board and the outer surface of the rock wool board of the filled masonry wall part which are smooth and at the same height as substrates.
2. The anchor-free bonding installation method of an external heat insulation layer suitable for a steel structure building according to claim 1, wherein the U-shaped connecting piece comprises two parallel side walls and an abdomen wall perpendicular to the two side walls, the U-shaped connecting piece is arranged perpendicular to the steel column, the abdomen wall between two adjacent U-shaped connecting pieces in the steel column is arranged in a laminating and symmetrical mode, and the U-shaped connecting piece grooves at the end parts of the steel column are opposite to the adjacent connecting piece grooves.
3. The anchor-free, non-adhesive installation method for an outer insulation layer of a steel structure building according to claim 1, wherein in the step (1), the U-shaped connecting member is laid along the long side of the steel beam.
4. The anchor-free bonding installation method for an outer insulation layer of a steel structure building according to claim 3, wherein the U-shaped connecting piece is connected with a flange steel plate of the H-shaped steel of the steel beam through angle steel.
5. The method for anchor-free, non-adhesive installation of an outer insulation layer for a steel structure building according to claim 1, wherein in the step (2), the U-shaped connector groove width is the sum of the thickness of the fireproof material layer and the thickness of the rock wool board.
6. The anchor-free bonding installation method for external heat insulation layer of steel structure building according to claim 1, wherein in the step (3), rock wool boards at external corners on the steel upright are interlocked alternately, and side surfaces of one side rock wool board cover and do not exceed end surfaces of the other side rock wool board.
7. The method for anchor-free and non-adhesive installation of an outer insulation layer for a steel structure building according to claim 1, wherein in the step (4), the fireproof and flame-retardant insulation board is a cement calcium silicate board, the cement calcium silicate board is fixed on the U-shaped connecting piece through a dovetail wire, the width of a splicing gap between the cement calcium silicate boards is controlled within 5mm, and sealant is filled between the gaps.
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| AU2005218061A1 (en) * | 2004-10-01 | 2006-04-27 | James Hardie Technology Limited | Fencing system |
| CN102852332A (en) * | 2012-03-22 | 2013-01-02 | 常州市建筑科学研究院股份有限公司 | Casting type fireproof external wall insulation system and construction method thereof |
| CN104695584A (en) * | 2015-02-05 | 2015-06-10 | 山东建筑大学 | Fire barrier belt with steel mesh frame rock wool board and construction method for fire barrier belt |
| CN109235693A (en) * | 2018-10-18 | 2019-01-18 | 中建三局安装工程有限公司 | A kind of assembling type steel structure composite thermal insulation external wall for building |
| CN214364189U (en) * | 2020-12-16 | 2021-10-08 | 北京中建建筑设计院有限公司 | Steel construction building fire resistive construction |
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2022
- 2022-06-09 CN CN202210648291.XA patent/CN115217340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005218061A1 (en) * | 2004-10-01 | 2006-04-27 | James Hardie Technology Limited | Fencing system |
| CN102852332A (en) * | 2012-03-22 | 2013-01-02 | 常州市建筑科学研究院股份有限公司 | Casting type fireproof external wall insulation system and construction method thereof |
| CN104695584A (en) * | 2015-02-05 | 2015-06-10 | 山东建筑大学 | Fire barrier belt with steel mesh frame rock wool board and construction method for fire barrier belt |
| CN109235693A (en) * | 2018-10-18 | 2019-01-18 | 中建三局安装工程有限公司 | A kind of assembling type steel structure composite thermal insulation external wall for building |
| CN214364189U (en) * | 2020-12-16 | 2021-10-08 | 北京中建建筑设计院有限公司 | Steel construction building fire resistive construction |
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